If context is needed, I'm happy to supply it.. The sentence I want to rephrase:
Some selection of this kind has for some time been imperatively called for, by the wants of the gardener, farmer, and amateur, the multiplicity of sorts in the larger works and catalogues rendering them nearly useless to those who merely wish to know those kind adapted for family or market supply.
I'm at a loss of words for interpreting the sentence into concise rephrasing for elementary comprehension.
It's from a book by Robert Buist titled "The Family Kitchen Gardener" (Full book). The sentence is under PREFACE a few paragraphs down.